The Galapagos islands have a great diversity of landscapes – from lush vegetation to nearly barren lava fields yet the Galapagos Finches survive on each island. How can this be explained?

Topic: Galapagos Finches

Darwin’s readings took him to a predictive theory of how species might change with time: what later thinkers have called microevolution.

Darwin’s philosophical worldview then took him beyond his evidence to a conviction that environmental constraints could create whole new structures and organisms.

Soon Darwin’s theory of macroevolution replaced the Creator with an environment that could create solely by constraint.

For your thread:

According to Chapter 13 section 13.1, define microevolution and macroevolution.

The Galapagos islands have a great diversity of landscapes – from lush vegetation to nearly barren lava fields yet the Galapagos Finches survive on each island. How can this be explained?

Using the varying bills of the Galapagos Finches in figure 13.3 and additional research, explain how microevolution is evidenced.